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Fix sandbox stop race condition.

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Signed-off-by: Lantao Liu <lantaol@google.com>
This commit is contained in:
Lantao Liu 2018-04-17 19:07:43 -07:00
parent c83a55d617
commit 856534c846
1 changed files with 7 additions and 4 deletions
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11
pkg/server/sandbox_stop.go
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@ -26,6 +26,7 @@ import (
"github.com/pkg/errors"
"github.com/sirupsen/logrus"
"golang.org/x/net/context"
"golang.org/x/sys/unix"
runtime "k8s.io/kubernetes/pkg/kubelet/apis/cri/runtime/v1alpha2"
sandboxstore "github.com/containerd/cri/pkg/store/sandbox"
@ -94,7 +95,9 @@ func (c *criService) StopPodSandbox(ctx context.Context, r *runtime.StopPodSandb
return &runtime.StopPodSandboxResponse{}, nil
}
// stopSandboxContainer kills and deletes sandbox container.
// stopSandboxContainer kills the sandbox container.
// `task.Delete` is not called here because it will be called when
// the event monitor handles the `TaskExit` event.
func (c *criService) stopSandboxContainer(ctx context.Context, sandbox sandboxstore.Sandbox) error {
container := sandbox.Container
task, err := container.Task(ctx, nil)
@ -105,10 +108,10 @@ func (c *criService) stopSandboxContainer(ctx context.Context, sandbox sandboxst
return errors.Wrap(err, "failed to get sandbox container")
}
// Delete the sandbox container from containerd.
_, err = task.Delete(ctx, containerd.WithProcessKill)
// Kill the sandbox container.
err = task.Kill(ctx, unix.SIGKILL, containerd.WithKillAll)
if err != nil && !errdefs.IsNotFound(err) {
return errors.Wrap(err, "failed to delete sandbox container")
return errors.Wrap(err, "failed to kill sandbox container")
}
return c.waitSandboxStop(ctx, sandbox, killContainerTimeout)